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3eb9473e 1/*++\r
2\r
2c7e5c2f
HT
3Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>\r
4This program and the accompanying materials \r
3eb9473e 5are licensed and made available under the terms and conditions of the BSD License \r
6which accompanies this distribution. The full text of the license may be found at \r
7http://opensource.org/licenses/bsd-license.php \r
8 \r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
11\r
12\r
13Module Name:\r
14\r
15 LRotU32.c\r
16 \r
17Abstract: \r
18\r
19 Math worker functions.\r
20\r
21--*/\r
22\r
c7f33ca4 23#include "BaseLibInternals.h"\r
3eb9473e 24\r
25/**\r
26 Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits\r
27 with the high bits that were rotated.\r
28\r
29 This function rotates the 32-bit value Operand to the left by Count bits. The\r
30 low Count bits are fill with the high Count bits of Operand. The rotated\r
31 value is returned.\r
32\r
33 If Count is greater than 31, then ASSERT().\r
34\r
35 @param Operand The 32-bit operand to rotate left.\r
36 @param Count The number of bits to rotate left.\r
37\r
38 @return Operand <<< Count\r
39\r
40**/\r
41UINT32\r
42EFIAPI\r
43LRotU32 (\r
44 IN UINT32 Operand,\r
45 IN UINTN Count\r
46 )\r
47{\r
48 ASSERT (Count < sizeof (Operand) * 8);\r
49 return (Operand << Count) | (Operand >> (32 - Count));\r
50}\r